ECG predictors

A selection of study findings on ECG predictors in the Seven Countries Study.

Long QT interval and coronary heart disease

Long QT interval related to high risk of CHD mortality A long QT interval in the resting ECG was associated with a 4-fold 15-year CHD mortality risk in middle-aged men and a 3-fold 5-year risk in the elderly men of Zutphen. These associations could not be attributed to prevalent heart disease and were independent of other cardiovascular risk factors. Interpretation Middle-aged men in the [...]

Long QT interval and coronary heart disease

ECG findings and coronary heart disease

Silent ECG findings related to CHD mortalitySilent ECG findings meeting specified criteria of the Minnesota Code were found at entry in half of the elderly men from Finland, the Netherlands and Italy. Major Q-waves, ST-T patterns, and arrhythmias were associated with a 3 times greater 10-year CHD mortality rate compared to those with absent or marginal findings. Lesser Q-waves, ST-T patterns, and frequent premature beats were [...]

ECG findings and coronary heart disease